GB1214766A - Method of manufacturing a spark-erosion electrode unit - Google Patents
Method of manufacturing a spark-erosion electrode unitInfo
- Publication number
- GB1214766A GB1214766A GB44947/69A GB4494769A GB1214766A GB 1214766 A GB1214766 A GB 1214766A GB 44947/69 A GB44947/69 A GB 44947/69A GB 4494769 A GB4494769 A GB 4494769A GB 1214766 A GB1214766 A GB 1214766A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layers
- silver
- electrode unit
- stack
- spark erosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
- B23H7/265—Mounting of one or more thin electrodes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Spark Plugs (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
1,214,766. Making spark erosion electrodes; soldering; spark erosion. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 Sept., 1969 [14 Sept., 1968], No. 44947/69. Headings B3A, B3R and B3V. A spark erosion electrode unit for making a plurality of spaced apertures is made by forming a stack of tantalum electrodes 1 and molybdenum intermediate layers 2 having interposed silver layers 3, soldering the layers 1, 2 together by heating the stack under pressure in vacuo or an inert atmosphere until the silver melts and penetrates into the pores of the layers 1, 2, machining the stack to form suitable electrode surfaces and removing the intermediate layers 2 by etching to a suitable depth from the surfaces. The silver layers 3 may be in the form of foils or silver coated molybdenum strips 2 may be used. The electrode unit can be used to form a slotted grating.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6813191A NL6813191A (en) | 1968-09-14 | 1968-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1214766A true GB1214766A (en) | 1970-12-02 |
Family
ID=19804662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB44947/69A Expired GB1214766A (en) | 1968-09-14 | 1969-09-11 | Method of manufacturing a spark-erosion electrode unit |
Country Status (5)
Country | Link |
---|---|
US (1) | US3634160A (en) |
BE (1) | BE738834A (en) |
FR (1) | FR2018140A1 (en) |
GB (1) | GB1214766A (en) |
NL (1) | NL6813191A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3789310A (en) * | 1972-09-14 | 1974-01-29 | Atomic Energy Commission | High-emission cold cathode |
DE2520698C3 (en) * | 1975-05-09 | 1979-03-08 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Method for producing an oil control ring |
FR2557736B1 (en) * | 1984-01-03 | 1986-04-11 | Thomson Csf | METHOD AND DEVICE FOR PRODUCING RADIANT SLOTS IN A WAVEGUIDE |
US5337940A (en) * | 1990-12-11 | 1994-08-16 | Woods Harlan L | Composite preform and method of manufacturing fiber reinforced composite |
US5324387A (en) * | 1993-05-07 | 1994-06-28 | Xerox Corporation | Method of fabricating asymmetric closely-spaced multiple diode lasers |
CN104772538B (en) * | 2015-04-29 | 2017-05-03 | 常州工学院 | Preparation method for copper-aluminum composite micro-electrolysis electrode |
CN104772540B (en) * | 2015-04-29 | 2017-05-24 | 常州工学院 | Electrochemical machining method for copper-aluminum composite electrode surface texturing |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3055098A (en) * | 1956-10-22 | 1962-09-25 | Westinghouse Electric Corp | Brazing dissimilar metals |
FR1282678A (en) * | 1960-12-15 | 1962-01-27 | Precision tool for drilling very small openings in thin metal sheets |
-
1968
- 1968-09-14 NL NL6813191A patent/NL6813191A/xx unknown
-
1969
- 1969-09-10 US US856627A patent/US3634160A/en not_active Expired - Lifetime
- 1969-09-11 GB GB44947/69A patent/GB1214766A/en not_active Expired
- 1969-09-12 BE BE738834D patent/BE738834A/xx unknown
- 1969-09-15 FR FR6931369A patent/FR2018140A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
NL6813191A (en) | 1970-03-17 |
FR2018140A1 (en) | 1970-05-29 |
BE738834A (en) | 1970-03-12 |
DE1942921A1 (en) | 1970-03-19 |
US3634160A (en) | 1972-01-11 |
DE1942921B2 (en) | 1976-12-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |